Biamp DA28R, Operation Manual

4 

APPLICATIONS 

50/60 Hz

~

27V

12 watts

class 2 wiring

logic inputs

logic inputs

output 8

output 7

output 6

output 5

output 4

output 3

output 2

output 1

CH 1

+10

trim

pad

+10

trim

CH 1

phantom

invert logic

phantom

invert logic

CH 2

level

level

level

level

level

level

level

level

pad

CH 2

DA28R

BIAMP SYSTEMS

Portland, Oregon

an affiliate of Rauland-Borg Corp.

INPUTS

OUTPUTS

2:50

1

COMPACT

DIGITAL AUDIO

EIGHT ZONES OF PAGE-OVER-MUSIC ROUTING

CH 1

phantom

invert logic

phantom

invert logic

CH 2

DA28R

zone paging switches

to equalizers/amplifiers for eight zones of page-over-music

optional music

assign switches

background music source

paging microphone

paging mic  (ch 2)
logic inputs set for
inverted operation.

Inverted operation of the

'paging mic' logic inputs

allows the microphone

push-to-talk switches

to un-mute the mic signal

at the appropriate outputs.

Non-inverted operation of

the 'music' logic inputs

assigns music to all outputs.

Music assign switches may

be added, which will mute

music at specific outputs

(music assign switches

require diode isolation).

logic inputs

1

13

14

25

zone 1

zone 2

zone 3

zone 4

zone 5

zone 6

zone 7

zone 8

paging microphone

push-to-talk switches

logic inputs 1~8

un-mute the mic

logic inputs 9~16

mute the music

ground